Penrose Conference on 'Tectonic Development of the Canada Basin, Arctic Ocean'

该奖项为关于北冰洋盆地构造发展的彭罗斯会议提供与会者支助资金。彭罗斯会议由美国地质学会主办，旨在将地质学和地球物理学领域科学思维发展的关键时刻的研究人员聚集在一起。这次会议的题目是“加拿大盆地及周边地区的构造发展”，会议将于1995年9月28日至10月3日举行。北极地区的构造史仍然极具争议，不仅对于我们理解全球构造，而且对于理解北极已知和推测的石油和矿产资源的框架都具有重要意义。即使在板块构造革命25年后，参与北极地区演化的构造板块的运动也没有全部确定。特别是，北极的加拿大盆地段在中生代和新生代是如何以及何时发展起来的，在科学文献中仍然存在争议。从始新世到最近的北冰洋演化被认为是相当简单的，包括沿欧亚盆地南森-加克尔海脊扩散的已确定海底。但现在，最近的野外工作表明，欧亚盆地中的一些新生代海底扩张运动已经转化为加拿大盆地。同样，最近对ERS-1卫星得出的北冰洋84北纬的重力数据进行的分析增加了新的信息，其中一些信息直接与关于加拿大海盆起源的争议有关。目前，致力于北极许多不同方面的各个小组往往相互独立地工作，并参加不同的国家和国际会议。因此，如果将这些小组的主要科学家聚集在一起，综合基于北极边缘的陆地地质学和地球物理学、海洋地质和地球物理研究以及航磁、航空重力和卫星数据的研究，就可以在理解北极构造方面取得实质性进展。此外，西方科学家直到最近才能获得的俄罗斯数据，需要与俄罗斯科学家与德国、美国和加拿大科学家联合研究获得的新数据一起纳入北极的构造模型。这次会议是增进对北极目前的地质和地球物理知识的了解，并规划北极未来协调和合作工作的机会。

This award provides participant support funds for a Penrose Conference on the tectonic development of the Arctic Ocean Basin. Penrose conferences are sponsored by the Geological Society of America and they are intended to bring together researchers at critical junctures in the development of scientific thinking in fields of geology and geophysics. The title of this conference is "The Tectonic Development of the Canada Basin and Surrounding Regions", and it will be held September 28-October 3, 1995. The tectonic history of the Arctic region is still extremely controversial and of great importance not only to our understanding of global tectonics, but also to understanding the framework of the known and conjectured oil and mineral resources of the Arctic. The movement of the tectonic plates involved in evolution of the Arctic region have not all been identified, even 25 years after the plate tectonic revolution. In particular, how and when the Canada Basin section of the Arctic developed during the Mesozoic and Cenozoic is still debated in the scientific literature. The Eocene to recent evolution of the Arctic Ocean was thought to be reasonably straightforward, consisting of identified seafloor spreading along the Nansen-Gakkel Ridge in the Eurasian Basin. But now, recent field work indicates that some of the Cenozoic seafloor spreading motion in the Eurasian Basin was transformed into the Canada Basin. Similarly, recent analyses of ERS-1 satellite derived gravity data over the Arctic Ocean to 84 N have added new information, some of it relating directly to the controversy concerning the origin of the Canada Basin. At the present time, the various groups that work on the many different aspects of the Arctic tend to work independently of one another, and attend different national and international meetings. Therefore, substantial progress could be made in the understanding of Arctic tectonics by bringing together the key scientists from these groups to integrat e studies based on terrestrial geology and geophysics around the margin of the Arctic, marine geological and geophysical studies, and aeromagnetic, aerogravity and satellite data. In addition, the Russian data that were not available to western scientists until recently, need to be incorporated into the tectonic models for the Arctic, along with new data obtained through joint research undertaken between Russian scientists, and scientists from Germany, U.S. and Canada. This meeting is an opportunity to advance understanding of the present geological and geophysical knowledge of the Arctic, and to plan coordinated and cooperative future work in the Arctic.